基于非标准航拍图像的三维数字地图实现

Implementation of 3D Digital Map based on the Non-standard Navigation Photograph

在分析和研究国内外有关特征点提取算法基础上,对Harris算子进行了改进,通过融合彩色图像的RGB各分量值得到彩色图像的特征点检测算子,确定自然特征点,减少了计算时间;改进当前国内比较普遍使用的DEM格式,提出一种简单、容易理解、占用空间小、运行速度快的DEM格式,并实现了三维漫游。

Harris arithmetic operator has been improved based on the analysis and study of relative characteristic point extraction algorithm home and abroad. In order to make full use the original information of color image, characteristic point check arithmetic operator has been obtained by merging color image RGB components value, which defines the natural feature points and reduces the calculation time. By mending the DEM format which is widely used domestically, a new DEM format has been brought out, which is simple, comprehensible, compact and quick. Preliminary wandering has been achieved by using this format.